/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/MeshNormalsFunctions.h
Recompute the normals of TargetMesh using the given CalculateOptions. This method will preserve any existing hard edges, ie each shared triangle-vertex normal is recomputed by averaging the face normals of triangles that reference that shared triangle-vertex normal
static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * RecomputeNormals ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, [FGeometryScriptCalculateNormalsOptions](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptC-) CalculateOptions, bool bDeferChangeNotifications, [UGeometryScriptDebug](API\Plugins\GeometryScriptingCore\GeometryScript\UGeometryScriptDebug) * Debug )